In Part 2 on Monday, fans can expect more singing from the final three and also performances by some music superstars, including the three American Idol judges: Katy Perry, Lionel Richie, and Luke Perry. And, of course, host Ryan Seacrest will announce the winner in the last five minutes.

So, before the results come in, let's look back at the top three's best three performances this season:

Maddie Poppe

When she made Katy cry with an original song:

When she made Lionel say, "Wow":

Disney night with her ukulele:

Caleb Lee Hutchinson

With his banjo:

When he plays that guitar:

That low growl of a voice:

Gabby Barrett

When she took us to church:

When Luke said it was the best vocal this season:

Carrie Underwood's twin showed up:

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